E13.22

Billable

Other specified diabetes mellitus with diabetic chronic kidney disease

HCC Category Mapping

V28HCC 37 — Diabetes with Chronic Complications

0.245

V24HCC 18 — Diabetes with Chronic Complications

0.302

ESRDHCC 18 — Diabetes with Chronic Complications

0.000

RxHCCHCC 30 — Diabetes with Complications

0.000

What This Code Means

A secondary form of diabetes with chronic kidney disease, indicating long-term kidney damage and reduced kidney function.

Coding Tips

•This code is more specific than E13.21 and indicates chronic kidney disease; document the CKD stage if available
•May be used alongside N18 codes for chronic kidney disease for additional specificity

Clinical Significance

E13.22 captures diabetic chronic kidney disease in other specified diabetes, indicating progressive and staged renal deterioration attributable to the patient's secondary diabetes. This code is more specific than E13.21 as it denotes that the kidney disease has been formally staged, reflecting a clearer picture of renal function decline.

Documentation Requirements

✓The provider must document the secondary diabetes type, its underlying cause, and the presence of chronic kidney disease with a documented causal relationship to diabetes.
✓The chronic kidney disease stage (N18.1 through N18.6) should be coded as an additional diagnosis to indicate severity.

Use Additional Code

code to identify stage of chronic kidney disease (N18.1-N18.6)

Commonly Confused Codes

E13.21 (diabetic nephropathy) when chronic kidney disease staging is not documented E11.22 (type 2 diabetes with chronic kidney disease) when the diabetes is type 2 N18.x codes used alone without linking to the diabetic etiology.

Code Hierarchy

└E13Other specified diabetes mellitus └E13.2Other specified diabetes mellitus with kidney complications └E13.22Other specified diabetes mellitus with diabetic chronic kidney disease

└E13.22Other specified diabetes mellitus with diabetic chronic kidney disease